For loop in serverspec

I have this Spec file: require 'spec_helper' for i in 1..3 describe file ("/var/tmp/efl_test_0#{i}_link" )do it { should be_linked_to "/tmp/efl_test_0#{i}" } end end The expected results are: /var/tmp/efl_test01_link should be_linke_to /tmp/efl_test01 /var/tmp/efl_test02_link should be_linke_to /tmp/efl_test02 /var/tmp/efl_test03_link should be_linke_to /tmp/efl_test03 The actual results are: Fail